Switching Regulators
  • SC195F
  • 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
  • SC202F
  • 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
  • SC21150
  • Tiny 1.2A Synchronous Buck Regulator
  • SC21152
  • Tiny 1.2A Synchronous Buck Regulator with Power Good
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
  • TS13101
  • Galvanic Isolated Latching 60V Power Load Switch
  • TS30011
  • High Efficiency 1A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
  • TS30012
  • High Efficiency 2A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
Semtech SC221

Semtech SC221

20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator

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The SC221 is a 20MHz X-EMI™(1)-enabled step-down regulator optimized for power low voltage rails from 2.7 to 5.5V input voltage. X-EMI™ inductor technology enables inductors to be drawn directly on the PC board. This technology meets or exceeds the EMI performance of chip inductors and eliminates the need for discrete inductors.

Features


  • Patented X-EMITM Inductor Technology
    • Enables Trace Inductors in PC Board Material
    • Excellent EMI Performance
  • Efficiency up to 90%
  • 17.5μA Quiescent Current under Very Light Loads
  • Wide Input Voltage Range — 2.7V to 5.5V
  • Adjustable Output Voltage Down to 1.0V
  • Output DC Current — up to 650mA
  • High Light-load Efficiency via Automatic PSAVE Mode
  • Ultra-fast Transient Response — <1μs
  • Temperature Range — -40 to +85°C
  • Shutdown Current — 0.1μA (typical)
  • Requires Tiny 220nH Inductor
  • Requires Only 1μF of Output Capacitance
  • External Switching Frequency Synchronization
  • Protection Features Including
    • Over-Current Protection
    • Output Short-Circuit Protection
    • Thermal Shutdown Protection
  • Offered in MLPD-UT 8 Lead Packages
  • Lead-free, Halogen-free, and RoHS/WEEE Compliant

Applications


  • HDTV, Set Top Boxes, Gaming Consoles
  • POL Applications
  • White Goods

Packaging

  • MLPD-UT 8 Lead package - 3,000 pcs. Tape & Reel only.

Order Codes

  • SC221ULTRT - Lead-free, halogen-free, and RoHS/WEEE compliant.
  • SC221EVB - Evaluation Board

 
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